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My parents want to upgrade from our 55 gallon to a 180 gallon tank eventually, but are worried about the ground floor being able to support it. The house has hardwood floors and a "wooden crawl space", and was built in Arkansas in the 80's/90's. Can anybody help me figure out if the 180 is going to bring the house down?

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So many fish/corals/inverts to keep/breed, not enough aquaria

Technically on hiatus from the hobby until 2020 or so...I'll pop up every once in a while

OP hasn't lost interest...just has absolutely no idea how to proceed. Like I said, the house lies on top of a wooden crawl space, and I have absolutely no idea what most of those things y'all are talking about are. Thus I've just been googling things left right and center. The proposed space is by a partitioning wall (?) that separates the kitchen from the living room (where the tank would be), and said wall is right next to an exterior wall with bricks like so:
(bricks) | OUTSIDE (bricks here)
kitchen |---------------------------------(wall)
kitchen | living room area
kitchen | (proposed tank area)

__________________
So many fish/corals/inverts to keep/breed, not enough aquaria

Technically on hiatus from the hobby until 2020 or so...I'll pop up every once in a while